The Audio Note (UK) Neiro Mono Power Amplifiers are Pure Class A Parallel Singled Ended valve amplifiers that use a pair of the highly regarded 2A3 triode valves per channel, producing a level of performance that is radically superior to the vast majority of current designs.

They have been specifically engineered for sonic performance rather than technical specification, and fulfil all Audio Note (UK) Level 4 criteria: -

Pure Class A operation

Zero Negative Feedback

Single Ended Output Stage

Valve Rectification

Directly Heated Triode operation

Materials and component quality

​Each amplifier is completely hand assembled, and uses only the finest possible materials and components: -

Audio Note (UK) customer Output Transformers, using AN(UK) Copper primary windings, AN(UK) Silver secondary windings and AN(UK) UHiB double C cores

Audio Note (UK) custom 1 Watt Tantalum resistors

Audio Note (UK) Copper Foil capacitors

Audio Note (UK) Silver internal wiring

Black Gate capacitors in critical areas